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A. Moro-Martin (Steward Observatory), A. Noriega-Crespo (SIRTF Science Center, Caltech), S. Molinari (IPAC, Caltech), L. Testi (Osservatorio Astrofisico di Arcetri), J. Cernicharo (Instituto de Estructura de la Materia, CSIC), A. Sargent (Division of Physics, Mathematics and Astronomy, Caltech)
We have recently completed a study of the IRAS 23011+6126 source and its young outflow Cepheus E (Cep E). They have been observed in the mid (~ 5-17 microns) and far infrared (~ 40-200 microns) using the ISO instruments CAM and LWS and at millimetric wavelengths (110.2 and 222 GHz) using OVRO.
The spectral energy distribution of IRAS 23011+6126 has spectral features similar to those of a Class I source rather than a Class 0, as previously proposed. Its mass envelope and bolometric luminosity, 13.2 Msun and 30 Lsun respectively, are consistent with this view.
The Cep E outflow is very young (3000-5000 yrs old), dominated by strong pure rotational H2 lines in the mid infrared, and a spectrum rich in H2O and CO lines in the far infrared. The resulting H2O abundances are between 100 and 4000 times greater than the one found in quiescent molecular clouds, confirming once more the presence of high water abundance in the shocked gas associated with young stellar outflows.
Founding institutions and grants are: Steward Observatory, JPL/Caltech, NSF grant AST-96-13717, NASA grant NAGW--4030, Agenzia Spaziale Italiana grant ASI ARS-78-1999, Spanish DGES grants PB96-0883 and PNIE98-1351.
The author(s) of this abstract have provided an email address for comments about the abstract: amaya@as.arizona.edu